Advance Epsilon 4 Manuel D'utilisation page 44

Symmetrical or assymmetrical collapses :
The EPSILON 4 conveys a highly satisfying solid feel. An active flying style will virtually
eliminate collapses. Larger collapses (over 50%) are characterised by a reasonably dynamic
turn which is easily controlled. For these situations we recommend the following :
Weight shift to the open side. Try to rotate with any ensuing turn so as to reduce the potential
for a twist. This also maintains airspeed and internal pressure promoting a fast reopening.
Depending on the severity of the turn apply brake on the open side so as not to enter a spiral
dive but be aware of creating a potential stall. The object is to fly the glider in a desirable
direction (avoiding obstacles) and then reopen the collapsed side using a generous pumping action.
Fast descents :
To quickly lose height the ADVANCE test team recommends, depending on the situation, a
spiral dive or big ears. It is a good idea that you practise these in smooth air. Even flares and
landings with big ears should be practised in smooth conditions so that a serious scenario
doesn't turn into an emergency.
Spiral dive (360) :
The spiral dive is entered into by gradually applying brake on one side. The desired bank angle
is controlled by the amount of brake applied. We advise no weight shifting and
to adjust the harness chest strap width at around 40-45 cm between the
karabiners. At the same time the pilot's head and field of view should
be oriented in the direction of the turn. To exit the spiral raise the
inside brake gradually. Depending on the steepness of the spiral it
is possible that the glider could do another rotation even after
releasing the brake. Be aware that a collapse may occur in case
the glider passes through its own trail.
Big ears :
The EPSILON 4 has a clever big ears line that enables the pilot to easely
facilitate the manoeuvre. A small handle attached to the A riser by velcro is
lifted up and pulled down enabling big ears to take place. Be careful not to pull down on the
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risers themselves. The wing tips will fold down and back. Use the brakes to reopen.
NB : do not attempt spiral dives with big ears as this manoeuvre results in extremly high loads
and can unduly stress the glider.